Whether an infant’s spitting up is caused by food accumulation or coldness needs to be judged based on the infant’s medical history, signs and symptoms, and the effects of medication. 1. Medical history and symptoms: spitting up before eating more food, accompanied by a thick and greasy tongue, sour taste inside the mouth, abdominal distension, stools with milk petals or undigested food, often caused by food accumulation. If you wear less clothes before spitting up, have a cold abdomen, have thin stools, hyperactive bowel sounds, and have cold symptoms such as nasal congestion and a runny nose, most of the time, you should consider that it’s caused by a cold. 2. Effect of medication: For spitting up caused by accumulation of food, take pepsin and other medicines that help digestion, and the spitting up can be relieved very quickly. If you have a cold, you can do a good job of warming up your child’s tummy, and you can get a good result. It is recommended that infants who spit up should go to their local pediatrician’s clinic in a timely manner. The above medications should be used under the direction of a physician.